jessica

Newest questions and responses by jessica

  1. algebra

    The figures in the pair are similar. Find the missing length. The image is of two proportionate isosceles triangles with vertical bases. One triangle has its base marked as 6 cm and two sides as 4 cm and 4 cm respectively. The other triangle has its base

    asked on February 10, 2019

  2. math

    Just wondering, but can you do everything that you do on desmos.com with a TI-84 calculator?

    asked on February 9, 2019

  3. language arts

    Which question should you ask during your third read of the multi draft reading process

    asked on February 5, 2019

  4. Chemistry

    Given the reaction: 3 Cu + 8 HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O If 12.0 moles of copper react, how many grams of HNO3 are needed?

    asked on January 30, 2019

  5. Chemistry

    A sample of propane, C3H8, contains 18.0 moles of carbon atoms. How many total moles of atoms does the sample contain?

    asked on January 16, 2019

  7. math

    Martin has 12 times as many baseball cards as Josie. Josie has 29 more cards than Kal. How many baseball cards does Martin have? what is the answer?

    asked on January 15, 2019

  8. Chemistry

    Two compounds that contain Cu and Cl have the following masses: Cpd A: 32.10 g Cu and 17.90 g Cl Cpd B: 23.64 g Cu and 26.37 g Cl Are the compounds the same? If not, what is the lowest whole-number mass ratio of Cu that combines with a given mass of Cl?

    asked on December 11, 2018

  9. Science

    Using: ammonium nitrate → water + nitrogen 1 oxide, write a balanced using correct chemical formulas the 1 should be a roman numeral but I don't know how to indicate that Thank you!

    asked on December 11, 2018

  10. Chemistry

    Balance the following by placing the correct coefficients in front of each formula _____ CaO + _____ P4O10 ______ Ca3(PO4)2 All the numbers are in subscript b. Using: ammonium nitrate → water + nitrogen I oxide, write a balanced using correct chemical

    asked on December 10, 2018

  11. math

    Give an algebraic expression for the following: 𝑠in(arctan 𝑥) Thank you!!

    asked on November 29, 2018

  12. Math

    How do I find the decimal for 12/6? Please put each step in order

    asked on November 27, 2018

  13. science/astronomy

    ok so I have this question which asks that considering water erupts from Saturn's moon(Enceladus) and escapes into space, what would be the water's minimum speed of eruption. A. 100km/h, B. 210km/h, C. 425km/h, D. 850km/h, E. 1700 km/h If anyone knows how

    asked on November 25, 2018

  14. algebra

    solve the following equation algebraically. show your work. 17 = -13 - 8x

    asked on November 19, 2018

  15. Math

    How do I subtract negative fractions with unlike denominators? I'm not cheating on a test for connexus and I'm not asking for freaking answers, I'm asking for someone to tell me how to do this. And don't bother answering if you're just gonna put confusing

    asked on November 9, 2018

  16. Psychology

    Describe what successful aging means to you by identifying at least 3 characteristics of successful aging that you have met. What characteristics of successful aging do you need to work on?

    asked on November 8, 2018

  18. maths

    The scale of the map is 1.20000 the road is 28 km apart from town to town how far apart will it be in on the map in cm

    asked on November 4, 2018

  19. Maths

    x is partly constant and partly varies with y.When y=5,x=19 and when y=10,x=34. (i) Find the relationship between x and y. (ii) Find x when y=7.

    asked on October 26, 2018

  20. Math

    A cup of coffee has cooled from 98degreesC to 50degreesC after 15 minutes in a room at 25degreesC. How long will it take to cool to 40degrees​C? Someone else helped me on a problem similar to this, however I keep getting it wrong by decimals. i.e the

    asked on October 21, 2018

  21. math

    Diego contributes to a money market account that earns 4.8​% annual interest. What should his monthly payment be if he wants to accumulate ​$210,000 in 30 ​years? Thank you so much!!

    asked on October 21, 2018

  22. temperature

    A cup of coffee has cooled from 95degreesC to 60degreesC after 13 minutes in a room at 24degreesC. How long will it take to cool to 30degrees​C? Thank you so much!!

    asked on October 21, 2018

  23. chemistry

    Calculate the energy of a photon of red light with a wavelength of 6.45 x 10-5 cm. h = 6.626 x 10^-34 Js c = 2.998 x 10^8m/s Thank you!

    asked on October 16, 2018

  24. Math

    For two parallel lines slopes, could one of them be a reduced version of the other. for example would y=1/2x+6 be parallel to y=2/4x+12 don't pay any mind to the y-intercepts, I just randomly pulled them out of my head. I just want to know if lines can be

    asked on October 5, 2018

  25. Socials

    S.S 10 Why would a prime minister call an early election? What are 5 functions or tasks of party volunteers Please help I am struggling with these two questions

    asked on September 25, 2018

  26. math

    Using only​ algebra, find a cubic function with the given zeros. -2, 3, -7 the polynomial function is: f(x)=x^3+ (BLANK) x^2-13x-42 i can't figure out what BLANK is Thank you!

    asked on September 22, 2018

  27. Chemistry/math

    Convert 2.4 atm to kPa. Does this represent standard pressure? Show all of the work please Thank you!!

    asked on September 17, 2018

  29. Chemistry

    How could you separate a mixture of water, rock salt, sawdust, and iron filings? Would this require physical means, chemical means, or both?

    asked on September 17, 2018

  30. math

    Confirm that f and g are inverses by showing the Composition of Inverses Rule for both f(g(x)) and g(f(x)) algebraically: f(x)=9x+3 g(x)= (x-3)/9 thank you!

    asked on September 16, 2018

  31. math

    Find the algebraic relationship between x and y: x = 5 – 4t^2 and y = 2t - 2 Thank you!!

    asked on September 16, 2018

  32. Economics

    Give and example in which one person has an absolute advantage in doing something but another person has a comparative advantage.

    asked on September 15, 2018

  33. math

    Describe how the graph of y = ((2x + 12)^2) + 3 can be obtained from the graph of y = x^2 Thank you!

    asked on September 14, 2018

  34. math

    How much 10​% solution and how much 65​% solution should be mixed together to make 100 gal of 35​% ​solution? Thank you!!

    asked on September 11, 2018

  35. math

    A graph G is obtained from a graph of y by the following sequence of transformations. Write an equation whose graph is G. y=|x|: a shift left 9 ​units, then a vertical stretch by a factor of 7​, and finally a shift down 6 units Thank you so much!!!

    asked on September 11, 2018

  36. Math

    The smallest figurine in a gift shop is 2 inches tall. The height of each figurine is twice the height of the previous figurine. Write a power to represent the height of the tallest figurine. Then find the height.

    asked on September 9, 2018

  37. math

    Find​ f(g(x)) and​ g(f(x)). State the domain and formula for each. f(x)=7x+8; g(x)=x-3 Thank you!!

    asked on September 4, 2018

  38. math

    Identify the function that fits the description given below. The six functions that are bounded below. A. y=(x-1)^2 B.y=int(x+1) C. y= -sqrt(x) D. y=x^3+1 E. y=2- (4/(1+e^-x)) F. y=-x G. y = -sin x H. y= |x|-2 I. y= cos x+1 J. y=(x+2)^3 K. y= -1/x L. y=

    asked on September 4, 2018

  40. mathematics

    A school has enough food to last 90 pupils for 7 days .If 10 more pupils come ,how long would the food last?

    asked on August 16, 2018

  41. Math

    Mr. Brown owned a house which he rented for $60 a month. The house was assessed at $9000. In 1975 the rate of taxation was increased from $25 to $28 per $1000 assessed valuation. By what amount should the monthly rent have been raised to absorb the

    asked on July 26, 2018

  42. Pharmacy calculations

    Based on the formula below, what quantities of each are needed to make 180 ml of this lotion? Benzyl Benzoate 250 ml Triethanolamine 5 ml Oleic Acid 20 ml Purified water to make 1000 ml

    asked on June 27, 2018

  43. math

    Division question John pays 45 dollars months (30 days) for a membership. what is the cost in one day? I don't know if you 45/30 or 30/45 can someone explain it to me

    asked on May 28, 2018

  44. English

    I have a few questions about grammar 1, Does a sentence that starts of with "if" an independent sentence or a dependant? 2, Does a sentence that starts of with "in order to" an independent sentence or a dependant? 2, is there a comma before “instead

    asked on May 25, 2018

  45. Math

    A conveyor belt carries supplies from the first floor to the second floor which is 30ft higher. The belt makes a 60 degree angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other to the nearest foot? If the belt

    asked on May 25, 2018

  46. science/math

    Jane runs a track race at 7.0m/s for 40 seconds using a force of 140N. How much work has she done? (remember s=d/t)

    asked on May 20, 2018

  47. Socials

    To what extent does nationalism bring people together or drive them apart? What factors influence nationalism and national identity?

    asked on May 16, 2018

  48. math

    Find the volume of the oblique cylinder. Round to the nearest tenth. Radius-13.8in Height - 20.5in Thank you!!

    asked on May 9, 2018

  49. science

    An element's atomic number is 52. How many electrons would an atom of this element have?

    asked on May 4, 2018

  51. science

    Electromagnetic and mechanical waves have different characteristics that make them advantageous for certain applications. Select the reasons that mechanical waves, such as ultrasound, are used for soft tissue imaging and to identify fractures in metals. I)

    asked on April 9, 2018

  52. Math/Algebra

    The graph of f(x)=sin(x) is transformed into a new function, g(x) , by compressing it vertically by a factor of 1/2 and shifting it 3 units down. What is the equation of the new function g(x) ?

    asked on April 8, 2018

  53. Math/Algebra

    Let p(x)=90/9+50e ^ −x . What is p(5) ?

    asked on April 8, 2018

  54. Math/Algebra

    On Dolphin Beach, the high tide is 2.2 meters and only occurs at 12 a.m. and 12 p.m. The low tide is 1 meter and only occurs at 6 a.m. and 6 p.m. Which function models the height of the tide t hours after 12 a.m.? a. h(t)=0.6cos(πt/6)+1.6* b.

    asked on April 8, 2018

  55. Math/Algebra

    The equation ​ yˆ=−6.2x2+41.5x−5.6 ​ approximates the average number of cars that pass through an intersection x hours after 3:00 p.m. What is the best estimate for the average number of cars that pass through the intersection at 5:30 p.m.? a. 35

    asked on April 8, 2018

  56. Chemistry

    What is the net ionic equation for the neutralization of CHOOH with NaOH?

    asked on April 5, 2018

  57. math

    1)what is the smallest integer greater than 1 that leaves a remainder of 1 when divided by any of the integers 8,9, and 10? 2) The square root of the difference of (B^2 /16) and (b^2/25) 3) Mr. Baker is 30 years old when his son is 4 years old. In how many

    asked on March 28, 2018

  58. math

    1) the average of four positive numbers is 15. The second number is 2 times the first number. The third number is twice the second. The last number is the last square of the first number. what is the largest number? 2) suppose that 4x^2 + 8xy +4xy^2=576.

    asked on March 23, 2018

  59. Geometry

    Please help! I can’t figure this out, I’ve got the equation but that’s about as far as I can get. I have to find C sin24/77=sinC/162

    asked on March 20, 2018

  60. law

    'Administrative law involves decision making within the bases of a government organisation and deals with powers and functions of the administrative authorities, and the manner in which they form legislations to enforce legal obligations upon individuals.'

    asked on March 17, 2018

  62. Law

    Can someone please explain to me what is administrative law. (country: Australia)

    asked on March 17, 2018

  63. Math

    Which is an irrational number? A:0.12*** B:0.1257486 C:0.12121212 D: 0.11111 Please help ;-; Also it would be appreciated if someone gave all the answers to the quiz

    asked on March 14, 2018

  64. math

    In triangle XYZ, the length of side XY is 29 mm and the length of side YZ is 43 mm. Which of the following could be the length of side XZ?

    asked on February 26, 2018

  65. math

    Simplify logx(x/4)+3logx(2/5)-log21(2/25)

    asked on February 24, 2018

  66. Math

    List 12pt 3gal and 16c from least to greatest

    asked on February 21, 2018

  67. math

    The table below shows the average diameter of a pupil in a person's eye as he or she gets older. age (years). Average Pupil Diameter (mm) 20 4.7 30 4.3 40 3.9 50 3.5 60 3.1 70 2.7 80 2.3 What is the average rate of change, in millimeters per year, of a

    asked on February 1, 2018

  68. Math

    A parking garage charges a base rate of 3.50 for up to 2 hours, and an hourly rate for each additional hours. The sign below gives the prices for up to 5 hours of parking. Parking rates: 2hrs. $3.50 3hrs. $9.00 4hrs. $14.50 5hrs. $20 Which linear equations

    asked on January 28, 2018

  69. General Chemistry II

    At a pressure of 1ATM, _____ KJ of heat is needed to vaporize a 32.3 g sample of liquid ethanol at its normal boiling point of 78.4 C. Boiling point (78.4 C), specific heat (2.46 J/g C), and Hvap(78.4 C)=38.6 KJ/mol are provided. Please include how to

    asked on January 27, 2018

  70. Math

    Evaluate 2/3 x for x=3/4 Hi, I don't know what they are asking me, can anyone help?

    asked on January 26, 2018

  71. math

    Evaluate (2.1 x 10^4) + (5.68 x 10^-2)Express the result in standard form. Can you explain your steps? I don't understand how to solve this with the negative 2

    asked on January 16, 2018

  73. Math

    1) Maria is 6 times as old as Tina. In twenty years, Maria will be only twice as old as Tina. How old is Maria now? Please explain how you got your answer. Thanks! 2) Rating. Relative speed of flow 10W. Half as fast as 5W 15W. Half as fast as 10W 20W. Half

    asked on January 15, 2018

  74. Math

    Savings-5% Others-25% Food- 10% Housing- 25% All taxes- 35% The pie chart above shows the Carson family's expenses for 1994. The Carsons had an income of $40,000 in 1994. In 1995 the Carsons income was $10,000 greater than in 1994. The family spent the

    asked on January 15, 2018

  75. Algebra2A

    I am confused with this question: Find teh value of y for a given value of x, if y varies directly with x. If y = 6 when x = 2, what is y when x = 5?

    asked on January 10, 2018

  76. Algebra2A

    This is one of the questions on the semester exam, which is: Which algebraic expression represents the following phrase? 'The square of the sum of t and 6.' A. t^2 + 6 B. t + 6^2 C. (t + 6)^2 D. 2(t + 6) I do believe it is C, but I am not sure.

    asked on January 10, 2018

  77. Math

    The number of bonds an atom can form is represented by A pair of dots*** Unpaired dots Total number of dots One dot

    asked on January 6, 2018

  78. Science

    Which element is most stable? Chlorine Helium*** Silver Oxygen

    asked on January 6, 2018

  79. spanish

    change the verbs from the present tense to the present progressive Nosotros salimos de la escuela Answer: estamos saliendo

    asked on January 4, 2018

  80. Math

    A certain college had 5,000 applicants and 3/8 of thes applicants were female. The college admitted 40 percent of all applicants and an equal number of male and female applicants. What is the percentage of female applicants admitted to the college? What is

    asked on December 30, 2017

  81. Math

    (k + 1/k) ^2 =36 what is k^2 + (1/k)^2 34?

    asked on December 30, 2017

  82. Math

    There is a picture of a square - BCAD, and then there is a triangle EAD. B. E C A. D FIGURE NOT DRAWN TO SCALE In the figure above, the perimeter of the equilateral triangle AED IS 6. What is the area of the rectangle ABCD? A) 6 B) 4 C) 4 radical 3 D) 3

    asked on December 30, 2017

  84. Math

    If x^2 - x - 6 = 0 and x^2 + 5x+6=0, what is the value of x? A) -3 B) -2 C) 2 D) 3 E) it can't be determined from the information given. I got B. By plugging in the answers. Is there an another way to solve this?

    asked on December 30, 2017

  85. Math

    Which ordered pair could be removed to make a function? {(1,3) (2,4) (3,4) (3,6) (5,10) (6,3)} A) (2,4) B) (3,4) C (1,3) D) (6,3)

    asked on December 27, 2017

  86. Math

    The planet Mercury is approximately 6 x 10^7 miles from the Sun. The distance between the Sun and Mars is approximately 2 x 10^8 miles. ABOUT how many times farther from the Sun is Mars than Mercury? 2 3 20 30 I got B? Can you please check? Thank you!!

    asked on December 27, 2017

  87. Math

    Due to the plate tectonics, the summit of Mount Everest moves about 4.5 X 10 ^-3 meter northeastwar in one year. About how many meters does the summit of Mount Everest move in 11 years? 4.09 x 10 ^-3 4.95 x 10 ^-3 4.09 x 10 ^-2 4.95 x 10 ^-2 Can you please

    asked on December 27, 2017

  88. Math

    A camper attaches a rope from the top of her tent, 4 feet above the ground, to give it more support. If the rope is 8 feet long, about how far will the stake need to be from the middle of her tent?

    asked on December 27, 2017

  89. Geometry

    8. The lateral area of a cone is 555πcm^2. The radius is 15.1 cm. What is the slant height to the nearest tenth of a centimeter? A. 36.8 cm B. 11.7 cm C. 83.8 cm*** D. 25.5 cm 10. What is the volume of the given prism? Round the answer to the nearest

    asked on December 18, 2017

  90. Geometry

    I have a few questions I am confused on. #4. Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. The figure is not drawn to scale. A. 795 m^2; 809 m^2 B. 758 m^2; 849 m^2 C. 795 m^2;

    asked on December 18, 2017

  91. Precal

    solve for x 7^x/2=5^1-x what i have so far is: (x/2)ln7=(1-x)ln5 im not sure where to go from there

    asked on December 7, 2017

  92. Algebra2

    I am doing the Factoring Quadratic Expressions Quiz, has anyone done it? I am really stuck on it.

    asked on December 6, 2017

  93. History

    1.Which event took place soon before The United States annexed Texas. A Sam Houston became president B Texas became a u.s. territory C James Polk became president D Texas wrote a new constitution 2.Which of the following images would be the best symbol of

    asked on November 28, 2017

  95. Chemistry

    How many copper atoms are in a pure copper statue with a mass of 200 kg ?

    asked on November 27, 2017

  96. biochemistry

    ) If the loss of each electron represents the liberation of 1.875 x 10-19 J, calculate the number of kJ and Cal (kcal), of fructose and oleate in a 1.00 g sample. (Significant digits count.) Fructose kJ = _____________ Cal = _____________ oleate kJ =

    asked on November 26, 2017

  97. biochemistry

    Calculate the total number of electrons that are lost in 1.00 g samples of fructose and oleate. (Note: the number of electrons lost per carbon atom is equivalent to its increase in oxidation state.) No. e- lost in 1.00 g fructose = _______________ No. e-

    asked on November 26, 2017

  98. Math/calculus

    Prove Sin 8theta -sin 10theta= cot 9theta (cos 10theta - cos 8 theta)

    asked on November 14, 2017

  99. Math/calculus

    Tan 165° Use appropriate identity and evaluate

    asked on November 13, 2017

  100. Math/calculus

    Cos^2x-sin^2x/sin^4x-cos^4x Simplify

    asked on November 13, 2017

  101. Math helppp

    Graph f (x) = 3cos (4pix -pi/2) -2

    asked on November 13, 2017

  102. Math/calculus

    Graph f (x) = 3cos (4pix -pi/2) -2

    asked on November 13, 2017

  103. Math/calculus

    Earth orbits the sun at an average distance of about 150 million kilometres every 365.2564 mean solar days, or one sidereal year. What is the linear velocity of th3 Earth in kilometres per hour?

    asked on November 13, 2017

  104. Math/calculus

    A small plane leaves Victoria airport and flies at a compass heading of 330°. If the plane cruises at 125km/he for 90mins, how far north and how far west will the plane gave flown

    asked on November 13, 2017

  106. Math

    2a+b=11 and 4a^2 +b^2=101, what is the value of ab? A 4 B5 C12 D6 E20

    asked on November 12, 2017

  107. Math

    Erica has 8 squares of felt, each with area 16. For a certain craft project she cuts the largest circle possible from each square felt. What is the combined area of the excess felt left over after cutting out all the circles? A) 4(4-pi) B) 8(4-pi) C)

    asked on November 11, 2017

  108. Math

    The average of four possible numbers is 15. The second number is 2 times the first number. The third number is twice the second. What is the largest number? Would these be consecutive integers? And then you find the median??

    asked on November 5, 2017

  109. Math

    While driving on a 500-mile trip, Mr. Smith averages 60 miles per hour for the first t hours. In terms of t, where t

    asked on November 5, 2017

  110. Math

    By 7:00P.M., 1/3 or the junior class has arrived at a school dance. By 8:09PM., 30 more juniors had arrived, raised attendance to 1/2 of the juniors class. How many people are in the juniors class? I don’t understand.. can someone help? A 30 B90 C120

    asked on November 5, 2017

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